Co-rumination is ruminating with others. It may be a mechanism in the increased likelihood of developing depression if somebody is close to people with depression but co-rumination doesn't, itself, describe that phenomena
If you have a suggested revision to the card happy to take a look at it. This, however, does not appear to be a suggestion
We do ask, and require, that an MCAT-specific source citation be included with any and all content-related suggestions, in order to streamline the process of suggestions and deck maintenance. More information can be found here: https://community.ankihub.net/t/anking-mcat-deck-submission-guidelines/384726
Please let me know if you have any other questions. :-)